CN202156067U - Polyurethane foam wedge wave absorbing material - Google Patents
Polyurethane foam wedge wave absorbing material Download PDFInfo
- Publication number
- CN202156067U CN202156067U CN2011200463804U CN201120046380U CN202156067U CN 202156067 U CN202156067 U CN 202156067U CN 2011200463804 U CN2011200463804 U CN 2011200463804U CN 201120046380 U CN201120046380 U CN 201120046380U CN 202156067 U CN202156067 U CN 202156067U
- Authority
- CN
- China
- Prior art keywords
- absorbing material
- polyurethane foam
- wave absorbing
- foam wedge
- wedge wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The utility model relates to the field of wave absorbing material structures, and particularly relates to a polyurethane foam wedge wave absorbing material which can block and weaken electromagnetic wave radiation. The polyurethane foam wedge wave absorbing material comprises an upper part and a lower part, wherein the upper part has a symmetrical structure which is formed by three or more than three same isosceles triangular prism bodies (1), and the lower part is a cuboid seat body (2), and the bottom surface of each isosceles triangular prism body (1) is tightly combined with the cuboid seat body (2).
Description
Technical field
The utility model belongs to the material that can keep out and weaken electromagenetic wave radiation---absorbing material structure field, specifically can keep out and weaken a kind of polyurethane foam wedge absorbing material of electromagenetic wave radiation.
Background technology
Electromagnetic wave absorbent material system utilizes the soft magnetic ferrite phenomenon that loss increases under high frequency to reach the purpose that absorbs electromagnetic wave.In the practical application on engineering,, also require the mechanical strength of material good except that requiring material in the very wide frequency ranges from RF to the microwave, to have the high electromagnetic wave energy absorptivity, coating is thin, in light weight, heatproof and moisture-proof, radioresistance and anticorrosive.Practical at present material has Ni-Zn ferrite and hexgonal screw etc.On practical applications,, process the compound that is mixed with broken-staple metal fibre and high-molecular organic material for improving to absorption of electromagnetic wave rate and expansion absorption frequency scope more.In addition, thereby parasitize the deficiency that the radar target surface has increased weight, also develop a kind of new structure type load body absorbing material that is composited with absorbing material and engineering plastics recently abroad for overcoming early stage absorbing material.The radome fairing that can be used for aircraft engine moves tens thousand of hours on U.S. F-111 fighter plane.North America Rockwell company also is developed into a kind of cellular structure type absorber of complicacy for the jet engine air inlet, very high absorptivity and mechanical strength are arranged.
Summary of the invention
The purpose of the utility model provides a kind of polyurethane foam wedge absorbing material, is the symmetrical structure (seeing accompanying drawing 1) that the isosceles tri-prismoid is formed on the basis of Electromagnetic Wave Absorbing Plate, and sponge is a base material.
The technical scheme of the utility model is: it is divided into upper and lower two parts a kind of polyurethane foam wedge absorbing material; The symmetrical structure that top is made up of some identical isosceles tri-prismoids; The bottom is the cuboid base, sits at the bottom of the bottom surface of isosceles triangular prism and the cuboid and combines closely.
Said isosceles tri-prismoid is preferred more than 3 or 3 in the such scheme.
Said centrosymmetric isosceles tri-prismoid structure is in foamed plastics, to mix carbon powder and then wrap one deck high strength type foamed plastics outside and do protective layer.
Pyramidal absorbing material is under the situation that two kinds of polarization all exist in this patent; Overall reflectance factor is only having parallel polarization and is only having between the reflectance factor of vertical polarization; And relatively approach vertical polarization, the good 6dB of vertical polarization reflectance factor is more only arranged at the most.Parallel-polarized excellent in performance has been buried.If select wedge shape for use, then when making the interface be in parallel polarization, absorbing material performance can be much superior, if be in the vertical polarization state, and then maybe more pyramidal big 6dB.The whole part that links to each other of wedge shape absorbing material is more in addition, and its mechanical strength is better.
Aspect installation, polyurethane foam wedge absorbing material adopts super glue to be bonded in the metal surface, if the material require dismounting also can adopt velcro or hook to install; Earth material directly lay on the ground, also Pasting.
Description of drawings
Fig. 1: polyurethane foam wedge absorbing material structural representation;
A---absorbing material total height
B---absorbing material substructure height
C---absorbing material base size
1-isosceles triangular prism; The 2-base.
Below in conjunction with accompanying drawing the present invention is done further elaboration.
The specific embodiment
As shown in Figure 1, a kind of polyurethane foam wedge absorbing material, it is divided into upper and lower two parts, the symmetrical structure that top is made up of three identical isosceles tri-prismoids 1, the bottom is a cuboid base 2, the bottom surface of isosceles triangular prism 1 and cuboid base 2 are combined closely.
The said polyurethane foam wedge of the utility model absorbing material, available in use super glue is bonded in the metal surface, if the material require dismounting also can adopt velcro or hook to install; Earth material directly lay on the ground, also Pasting.Polyurethane foam wedge absorbing material is in foamed plastics, to mix carbon powder and then wrap one deck high strength type foamed plastics outside and do protective layer, even absorber receives the also unlikely damage of extraneous collision like this.
Claims (2)
1. polyurethane foam wedge absorbing material; It is characterized in that it is divided into upper and lower two parts, top is the symmetrical structure that some identical isosceles tri-prismoids (1) are formed; The bottom is cuboid base (2), and the bottom surface of isosceles tri-prismoid (1) and cuboid base (2) are combined closely.
2. polyurethane foam wedge absorbing material according to claim 1, the number that it is characterized in that the isosceles tri-prismoid is more than 3 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200463804U CN202156067U (en) | 2011-02-24 | 2011-02-24 | Polyurethane foam wedge wave absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200463804U CN202156067U (en) | 2011-02-24 | 2011-02-24 | Polyurethane foam wedge wave absorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202156067U true CN202156067U (en) | 2012-03-07 |
Family
ID=45763713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200463804U Expired - Fee Related CN202156067U (en) | 2011-02-24 | 2011-02-24 | Polyurethane foam wedge wave absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202156067U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774472A (en) * | 2015-04-10 | 2015-07-15 | 大连东信微波技术有限公司 | Ultra-wideband terahertz wave-absorbing material |
| CN107555968A (en) * | 2017-08-30 | 2018-01-09 | 中国人民解放军国防科技大学 | High-temperature-resistant wave-absorbing wedge and preparation method thereof |
| CN111969330A (en) * | 2020-07-31 | 2020-11-20 | 航天科工武汉磁电有限责任公司 | Radar wave-absorbing material with unit structure pattern and preparation method thereof |
-
2011
- 2011-02-24 CN CN2011200463804U patent/CN202156067U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774472A (en) * | 2015-04-10 | 2015-07-15 | 大连东信微波技术有限公司 | Ultra-wideband terahertz wave-absorbing material |
| CN107555968A (en) * | 2017-08-30 | 2018-01-09 | 中国人民解放军国防科技大学 | High-temperature-resistant wave-absorbing wedge and preparation method thereof |
| CN107555968B (en) * | 2017-08-30 | 2020-03-24 | 中国人民解放军国防科技大学 | High-temperature-resistant wave-absorbing wedge and preparation method thereof |
| CN111969330A (en) * | 2020-07-31 | 2020-11-20 | 航天科工武汉磁电有限责任公司 | Radar wave-absorbing material with unit structure pattern and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210284038U (en) | Shelter with bulletproof, radar stealth and electromagnetic shielding functions | |
| CN202156067U (en) | Polyurethane foam wedge wave absorbing material | |
| CN1767757B (en) | Electromagnetic wave absorbing material | |
| CN102900153B (en) | Three-dimensional lead extrusion bearing capable of insulating shock and dissipating energy | |
| CN102700181B (en) | Light multifunctional composite structure | |
| CN205264856U (en) | Aviation antenna | |
| CN102615883B (en) | 150 DEG C resistant foam interlayer wave-absorbing composite material and preparation method thereof | |
| CN103000995A (en) | Combined antenna housing | |
| CN205982435U (en) | Field test system is reduceed in small -size integration | |
| CN110699968B (en) | Wave-absorbing composite foam and preparation method thereof | |
| CN104647823A (en) | Shock-resistant energy-absorbing material and preparation method thereof | |
| CN201456485U (en) | Interlayer for resin-based light stealth dot-matrix composite material | |
| CN202258383U (en) | Polyurethane foam pyramid absorbing material | |
| CN102768377A (en) | Unfoldable reflecting mirror body based on double-curvature negative poisson ratio honeycomb structure | |
| CN202977737U (en) | A spaceborne lightweight net-shaped reflector antenna | |
| CN102080439A (en) | Composite honeycomb sandwich structure floor | |
| CN115257072A (en) | Composite material pressure-torsion coupling chiral lattice sandwich structure and preparation method thereof | |
| CN203561298U (en) | Anti-fragment wave-absorbing explosion removing tank | |
| CN112549686B (en) | Foamed aluminum lattice structure composite material, preparation method and composite board | |
| CN102717898A (en) | Asteroid accompanying attached detector and construction method thereof | |
| CN105946311A (en) | Ultra-high-toughness shock-proof and antiriot composite plate and manufacturing method thereof | |
| CN106950433A (en) | A kind of low electromagnetic scattering background environment implementation method for adapting to condition of high vacuum degree | |
| CN109334165A (en) | Indent superstructure sandwich composite construction in a kind of light multifunction face | |
| CN102270681A (en) | Solar cell sailboard matched with shape of rigid inflatable and deployable satellite | |
| CN109265127B (en) | Preparation method of high-strength high-toughness electromagnetic protection material for 3D printing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING BOPING ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NANJING NANDA BOPING ELECTRONICS INFORMATION CO., LTD. Effective date: 20141203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211113 NANJING, JIANGSU PROVINCE TO: 210000 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141203 Address after: 210000 Jiangsu city of Nanjing province high tech Industrial Development Zone Huidalu No. 6 Beidou 2 storey building Patentee after: NANJING BOPING ELECTRONIC TECHNOLOGY CO., LTD. Address before: 211113 Jiangsu city of Nanjing Province Tai Road, Jiangning economic and Technological Development Zone No. 68 Sheng Branch Center Patentee before: Nanjing Nanda Boping Electronics Information Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20180224 |